What is the speed of the train 400 m long which passes through a 200 m – McqOptions

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1.	What is the speed of the train 400 m long which passes through a 200 m tunnel in 40 seconds ?
A.	36 km/hr
B.	38 km/hr
C.	44 km/hr
D.	54 km/hr
Answer» E.

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